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(No Model. 2 Sheets-Sheet 1. 0. DE'AVS.

COMBINED GAS AND ELECTRIC LIGHT FIXTURE.

Patented May 26, 1885.

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N. Panes, Phowmha u (No Model.) 2 Sheets-Sheet 2. G. DEAVS.

COMBINED GAS AND ELECTRIC LICET FIXTURE. No. 318,547. Patented May 26,1885.

Unirrtn fira'rns PATENT rrrca.

CHARLES DEAVS, OF NICKY YORK, N. Y., ASSIGNOR TO THE ARCHER & PANGOASTMANUFACTURING COMPANY, OF SAME PLACE.

COMBlNED GAS AND ELECTRlC LlGHT FIXTURE.

.SPECIFICATION forming part of Letters Patent No. 318,547, dated May 26,1885.

Application filed December 2, 1884.

To all whom it may concern.-

Be it known that I, CHARLES Dnxvs, of New York city, county ofNew York,and State of New York, have invented certain new and useful Improvementsin Combined Gas and Electric Light Fixtures, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

My invention has relation to that class of illuminating devices whereinboth gas and electricity are employed for the purpose of producing thelight.

The object of my invention is to produce an efficient combined gas andelectric light fixture, carrying gas-burners and incandescent electriclamps, in which fixture either the gas or the electricity may beseparately employed, or wherein both may be employed at the same .20time whenever desired, the two parts of the fixture being completelyinsulated (electric ally) one from the other, and together forming aneat, substantial, and convenient illuminating device, whereof the partsare readily accessible, and the manufacture and mounting for use aresimple, easy, and inexpensive.

My improvements involve certain novel and useful peculiarities ofconstruction, relative arrangements or combinations of parts, and 3cprinciples of operation, all of which will be herein first fullyexplained, and then pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figurel is a vertical view of a chandelier constructed and arranged foroperation in accordance with my invention, the same being partly inelevation and partly in section. Fig. 2 is an elevation (enlarged beyondFig. l) of the upper box or chamber wherein the electric cutouts arelocated, and Fig. 3 is a horizontal section of the same. Fig. 4. isacentral vertical section showing the construction and arrangement ofthe insulating-coupling for uniting the fixture 5 with the house orservice pipe. Fig. 5 is a horizontal section through line 00 x of Fig.1, showing the means employed for preventing accidental electric contactof the lower portions of the fixture. Fig. 6 is a side elevation, Fig.

7 an end elevation, and Fig. 8 a partial plan and horizontal section,showing the improved (No model.)

] fixture arranged and adapted for use as a side or wall bracket(instead of in the form of a chandelier, as in Fig. 1) and involving myimprovements.

In all these figures like letters of reference, wherever they occur,indicate corresponding parts. I

The'fixture is composed of two main or prin cipal partsviz., agas-eonducting pipe, A, which supplies gas to the projecting arms a,whereon the gas-burners are located, and the tubes 13, for containingthe electric conductors and supporting the incandescent electric lamps.These two parts of the fixture or apparatus are united so as to form onestructure as a chandelier or side bracket-and, as will be readilyunderstood, they may be of various shapes, and the tubes B and arms a ofvarious numbers, so as to afford any desired number of lights either ofgas or electricity.

The two parts of the fixture are united in one structure when assembledfor use together, and they may be readily detached one from the other,or both used at one time, or both united, and one used independently ofthe other.

The fixture is intended to be supported or sustained by the house orservice pipe represented at O. This projectsatrifie beyond the Soceiling or wall, and is threaded at its outer extremity. Upon theprojecting end I place the insulator, (represented at b 0,) the samebeing preferably made of the substance known to the trade as insulatingfiber.

The box or chamber within which the cutouts are located is composed oftwo plates, D and E, the same being united by ribs, as (Z d, betweenwhich there is ample space for affor-ding access to the interior of thebox or chamber. The tubes B are threaded into the plate E, or otherwisesecured thereto. The plate D is cent-rally perforated to fit over theservice-pipe and over the insulator thereon, and is also perforated, asat e, at suitable in- 5 tervals for the passage of the electricconductors f f.

The plates D and E and tubes B being assembled, they are secured uponthe servicecrates to sustain them in proper place, and also operates tohold the fixture from accipipe by means of a metallic nut, F, which op-ICO dental displacement in case the insulator should become damaged orsoftened,as it might do if exposed to moisture or other deterioratinginfluences. After the above-named parts are in place, the gas-tubeAissecured upon the service-pipe by a threaded joint, as shown, or by anyof the known means of coupling pipes, the plate E being perforated toadmit the passage of pipe A, the perforation being amply large so thatno vibration will bring plate E in contact with pipe A. Gas enters tubeA from E, and is distributed to the burner-pipes a without entering thebox at the upper or inner extremity of the fixture. The insulatedconducting-wires enter the box from the house side of the fixture, andare passed down into the tubes B, wherein they are protected andconcealed, and are then connected with the incandescent lamps in any ofthe known ways. The space between the two plates D and E affords aconvenient receptacle or locality for the cut-outs which are employed toprevent damage to the apparatus or surrounding objects in case ofaccidents to any of the lamps or conducting-wires. These cut-outs areconventionally illustrated at g g, and may be of any of the known forms.The plates h h form the walls of the box of the chamber, and they areremovably attached to the studs or ribs d, which join the two plates,asby the removable screws 1 1'. These plates may be easily detached at anytime, and access to the interior afforded for replacement, readjustment,or re pairs. The two portions of the fixture are completely andeffectually insulated one from the other. Aring or band, G, unitesthetubes B and prevents them from being disarranged. The central tube, A,or tubes B, by reason of their length, might be vibrated to aconsiderable extent, and to prevent them from coming in contact witheach other, and thus by any accident grounding the electric currentthrough the gas-piping, I surround the tube A with an ornament or otherobject, as the ball H, and supply this with insulating-knobs, as k, oran equivalent insulating-ring, which, in case of the vibration of eitherpart, will come in contact with the ring G and prevent any passage ofthe electriccurrent. Of course the same result would be attained bylocating the knobs or ring upon the interior of G.

At K is a second ornament, indicating that the fixture may be ornamentedat various points, if desired. Of course any number of burners or lampsmay be employed, and they may be arranged at various points upon thefixture, it being in no way important that they should all be connectedwith the lowermost or outermost portions of the main tubes. The

side or wall fixture operates upon the same principles and isconstructed in substantially the same manner as the ceiling fixture orchandelier, as represented in Figs. 6, 7, 8. In this form the ring G andornaments H and K might be omitted, as the parts are usually quite rigidand not liable to vibrations.

It has not been deemed necessary to show the lamps, which may be of anypattern, as may also the burners.

The parts are all simple of construction and easy to assemble whenrequired, and the whole structure well adapted to answer the purpose orobject of the invention, as previously set forth.

Having now fully described my invention, what I claim as new herein, anddesire to secure by Letters Patent, is

1. In a combined gas and electric light fixture, the herein-describedbox or chamber liaving removable walls and containing the cutouts, saidbox being mounted upon and supported by the gas-service pipe insulatedtherefrom, and supporting the tubes containing the electric conductors,substantially as shown and described.

2. The combination, with the gas-service pipe, of the box or chambermounted thereon and insulated therefrom, said box being arranged tosustain the tubes for the electric conductors, and being composed of thetwo main perforated plates, united as explained, and the movable walls,substantially as and for the purposes set forth.

3. In an apparatus of the character herein set forth, the combination,with the gas-service pipe, of the insulatingdisks serving to insulatethe box and its attachments, the box containing the cut-outs and havingthe removable walls, the sustaining metallic nut applied upon the end ofthe service-pipe, and the tubes supported by said box, substantially inthe manner and for the purposes set forth.

4. In an apparatus of the character herein set forth, the tubes forcontaining the electric conductors, a ring for connecting the same, thecentral gas-supply tube, and the interposed non-conductorsarranged toprevent electric contact of the vibrating parts of the structure,substantially as shown, and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand inthe presence of two witnesses.

CHARLES DEAVS.

W'itnesses:

J OHN BUCKLER, WORTH Oseoon.

